Study on Inspection Mechanism of Organic Gems Based on Laser Raman Spectroscopy

Li Shi; Hui Chi; Yong Yu; Wei Wang

doi:10.54097/hset.v21i.3186

Authors

Li Shi
Hui Chi
Yong Yu
Wei Wang

DOI:

https://doi.org/10.54097/hset.v21i.3186

Keywords:

Raman spectroscopy, Organic gemstones, Gemstone inspection

Abstract

Raman spectroscopy is a fast and nondestructive analysis and detection technology. Raman spectroscopy contains rich molecular structure information of substances. Based on the application status of Raman spectroscopy in the field of gemstones, this paper further explores its application technology in the qualitative identification of organic gemstones. In this paper, natural Longpai, Koba resin and rosin were tested based on laser Raman spectroscopy. The identification difficulties of high imitations of natural resins in Longpai are solved respectively. Therefore, the application of Raman spectroscopy to the identification and analysis of high imitations of organic gem amber and its natural resin has great advantages and convenience.

Downloads

Download data is not yet available.

References

Li S, Ma W J, Yan R, et al. Temperature dependence of Raman spectra in single-walled carbon nanotube rings[J]. Applied Physics Letters, 2008, 92(12):121905.

Bocklitz T, Walter A, Hartmann K, et al. How to pre-process Raman spectra for reliable and stable models?[J]. Analytica Chimica Acta, 2011, 704(1-2):47-56.

Sahin H, Tongay S, Horzum S, et al. Anomalous Raman Spectra and Thickness Dependent Electronic properties of WSe2[J]. Physical Review B, 2013, 87(16):1106-1115.

Park J S, Reina A, Saito R, et al. band Raman spectra of single, double and triple layer graphene[J]. Carbon, 2009, 47(5):1303-1310.

Larouche N, Stansfield B L. Classifying nanostructured carbons using graphitic indices derived from Raman spectra[J]. Carbon, 2010, 48(3):620-629.

Auer B M, Skinner J L. IR and Raman spectra of liquid water: Theory and interpretation[J]. Journal of Chemical Physics, 2008, 128(22):2210.

Roehrl J, Hundhausen M, Emtsev K V, et al. Raman spectra of epitaxial graphene on SiC(0001)[J]. Applied Physics Letters, 2008, 92(20):666.

Batista A J, Vianna P G, Ribeiro H B, et al. QR code micro-certified gemstones: femtosecond writing and Raman characterization in Diamond, Ruby and Sapphire[J]. Scientific Reports, 2019, 9(1):8927.

Chen, Liang, Don, et al. Using Raman Spectroscopy for Gemstone Analysis[J]. American laboratory, 2017, 49(5):32-34.

Thomas S M, Thomas R, Davidson P, et al. Application of Raman spectroscopy to quantify trace water concentrations in glasses and garnets[J]. American Mineralogist, 2008, 93(10):1550-1557.